Method of and mechanism for forming split d handles



l G. W. BENTON METHOD oF AND MEcHANIsM Foa FORMING SPLIT D-HANDLES Jan, 6, .1925.'

med Feb. 2e. 1924 v lllecha'nisin for Formingl Split D Handles, of which the following is a' specification, the

Patented Jan. 5, 1925.

Unirse stairs suenen' w'. Britton,

itunes ai-enr series,

or eoniirnur; oHro.

`iue'ri-Ion or Ann irneH-ii-irsifron romaine sritrr D HANDLES.

Application filed February 2S, 1924.' SiialNe. 695,283.

T0-'QU 07mm t may concer-7i. y

Be it known that I, Grenen W7. BENTON, a citizen of the United States, and resi` dent1 of Coniieaut-,vcounty` of Ashtabula, and

State of Ohio, have invented anew :and useful Improvement in Methods of and a shovel; spade' or the like, is suitably atfv tached, is ordinarily bent inthe form of a double curve so as tofoifset-such'iinpleniet with respect to the mainabody offthe haft or stem.V` Heretofore inthe manufacture of handles of' the type in question, the practice has been'` to form thesplit'v end in onel operation4 and then to bend-the other rend* asa separate operationthe orderl ofthe opera-V tionsbeinp; immaterialz- Inasmuch as bothquirctobeheldin such dies until the wood has thoroughly driedout and the endsthus caused tofset inthe form *desired the wood, ofcourse",l requires to be steamed `or other wise softened to permit the bending theres of), the'performance of theseY operations separately not' only involves a duplic'ationof effort but is c(implicati-id^infV thecaseaof thesecondy operation by the factv that theypreviously formed end is encased in a:` die orV inold which has thustfo-be left in=place-.

It becomes necessary in fact, inlperforining;y these operationst laterally thehaft oi stein at an'int-ermedia-te pointwithl sufficient force'to substantially prevent endVv wise'finovement offthehaindle', 'the result-'beingathat frequentlyV the vhandle isr marred by the grippinganieans employed* or duetol its-1` slipping,VV in 'such' means.:l

The" object of the present' invention# is to provide a machine in which bothv bending operations may be performed simultaneously`r i! e., the split handle end proper'isV formed at the saine time that; thex oppositel endf.- isy bent' into the offsetfforn'i desired: Incident-ally to such forming., operations,

y pressure accordingly appliedagainstbothA ends of the handle and in approximately Y employ any intermediate gripping means to prevent endwise. movement of the handle.`

equal amounts soI that it is unnecessary to The performance of both operations at theY Sametime furthermore effects a material saving. in time and power', since' obviousl;7v` no more force is required than where one endv at. a time is being'operated upon; v

To thev accomplishment ofthe foregoing Y and' related objects-,the invention, then, con-. y sists of the steps and' means hereinafter fully described andv particularly pointed out in the claims,ftlieannexed `drawings andthe followingl` description settingforthV in detail certain mechanism embodying the in-l vention, suchy disclosed means constituting, butl Vone of `various'mechanical formsin which` the' principle of the inven-A however,

tion may be used. l

In. said annexed drawings Fig- 1 is aside elevation Aandflig. 2a

plan view o .fa machine embodying-my presentA improvements.

The operative part'sof the machine are suitably mounted on` a bed l, supportedatV a convenient elevationl b 'legs 2; For the purpose of receiving an properly4 locating the handle with respect to'tlie forming dies or molds, a clamp'is mounted on said bedV at a" point approximately midway between its-ends, such clainpI consisting-1 of a fixedjaw 3 andA amovablejaw l pivotal'ly *attached to saidfixedjaw and adapted to be presse'd--thereagainst by means of' a lever` y 5,- a's will-'be readily understood? The bed vis formed withV a" central longitudinal. open# ing: '51tliatextendsjsubstantially'itsentire `length-'andy aligned with such openingare twoj sets of guidesY 7', 7, and,l 8, 8, one set being' located on each si'de of the clamping` means just described. Slidably held between guides 7, 7,;is?a block 9, the upper face of lwhich is adapted tohave' detacliably secured j thereto a horizontally splitA mold or` die 'l0 of-the tvperegularly ei'nploye'din'.forming1 p thespilitend into;diverging a-rmjs of delesiredl curvature.l Similarly, slidably held between guidesj, 8 ,gis another block 12 adaptedlto have detachably` securedy thereto-fa" vertically split die or mold 13? ofthe type regularly used for forming or bending the butt end of the'V handle; Ai. e., the end to vwhich `the imple'inentis designed ultimately to be at tached.

i iu

l weight 24 is connected Suitable means are provided for simultaneously advancing the slide blocks 9 and 12 towards each other and for similarly simultaneously retracting same. In the preferred form shown, such means include two segmental disk cams 14 and 15, fixedly secured to a transverse shaft 16 that is journaled in suitable bearings on the bed of the machine adjacent one end of such bed (the left-hand end as shown in Figs. 1 and 2). These cams are preferably of helical outline but being located 180 degrees apart, are adapted to exert a pushing action in opposite directions. Cam 14 co-operates with a roller 17 on one end of a bar 18 that eX- tends longitudinally of the slot in the bed of the machine and is pivotally secured at its other end between two ears 19 that depend from slide block V9. The other cam 15 coi-operates with a roller 2O directly mounted on the adjacent end of slide block 12.

As a result of the foregoingconstruction, it will be seen that as the shaft 16 rotates in a clockwise direction, viewing the machine from the side shown in Fig. 1, the bar 18 and thus slide block 9 will be pulled towards the left at the same time that the slide block 12 is pushed towards the right. F or the purpose of retaining rollers 17 and 20 in contact with their respective cams, a counter-weight 21 is connected by means of a 'cable 22 that passes over a pulley 23 with the slide block 9, while another counterby means of a cable 25 that passes over a pulley 26 mounted at the opposite end of the bed with slide block 12.

The shaft 16 that carries the cams may be driven in any desired manner. As shown, an electric motor is connected with said shaft through suitable reduction gearing, as need not be described in detail, the reduction preferably being considerable so Y that al motor of low horse-power may be employed and so that the movement of the slide 'blocks with the dies carried thereby respectively may be at the necessary slow speed in order properly to force the dies onto the respective ends of the handle without damage to the latter.

In operating the machine, the straight unformed haft o stem, which, however, has its oneend split, as hereinbefore described, is placed between clamp jaws 3 and 4, the slides 9 and 12 being in fully retracted position and Vhaving a set of dies 10 and 13 respectively secured thereto. The dies are then forced onto the corresponding ends of the stem with the result that these are appropriately formed by the movement of the slides towards each other produced upon rotation of shaft 16. On completion of such movement, the stein is unclamped and removed with the dies or molds which are previously detached from the corresponding slides, a fresh set of such dies is secured to each of the slides, and another handle placed in position for the next operation as soon as the slides have been sufiiciently retracted.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the means and the steps herein disclosed, provided those stated by any one of the following claims or Ytheir equivalents be employed. y

I therefore particularly point out and distinctly claim as my invention 1. The method of forming split D-handles which consists in placing the straight haft with its one end splitbetween two relatively movable dies respectively adapted when forced upon the ends of such haft to spread and form the portions of such split end and to bend the other end; and simultaneously moving said dies thus to force the same upon such ends.

2. In mechanism of the character described, the combination of two spaced supporting members movable towards and from each other; and dies detachably secured to said members respectively and adaptedl when forced upon the respective ends of a straight haft split at its one end to spread and form the portions of such split end and to bend the other end.

3. In mechanism of the character described, the combination of twoV spaced supporting members movable towards and from each other; dies detachably secured to said members respectively and adapted when forced upon the respective ends of a straight haft split at its one end to spread and form the portions of such split end and to bend the other end; and means adapted alternately simultaneously to advance said supports towards each other and draw the saine apart. v

4. In mechanism of the character described, the combination with a suitable bed; of two aligned sets of guideways thereon; members slidably mounted on said guideways, respectively, so as to be movable to wards and from eachother; a handle engagingand holding device located between said sets of guide-ways; dies detachably secured to said members respectively and adapted when forced upon the respective ends of a straight haft split at its one end to spread and form the portions of such split end and to bend the other end; and means adapted alternately simultaneously to advance said supports towards each other and draw thc same apart.

5. In mechanism of the character described, the combination with a suitable bed;

of two aligned sets of guide-ways thereon;

members slidably mounted on said guideways, respectively, so as to be movable towards and from each other; a handle engaging and holding device located between said sets of guide-ways; dies detachably secured to said members respectively and adapted when forced upon the respective ends of a straight haft split at its one end to spread and form the portions of such split end and to bend the other end; means adapted al* ternately simultaneously to advance said supports towards each other and draw the same apart; said means including a rotatable shaft transversely journaled in said bed beyond one set of guide-ways; a disk cam fixed to said shaft and directly co-operative with the adjacent slidable member to push the same towards the other member, a longitudinally extending bar connected with such other member, and a second disk cam fixed to said shaft and co-operative with said rod to pull the member thus connected therewith towards said first member.

6. In mechanism of the character described, the combination with a suitable bed;

'draw the same apart, said means including a rotatable shaft transversely journaled in said bed beyond one set of guide-ways; a

disk cam lixed to said shaft and directly c0- operative with the adjacent slidable member to push the same towards the other member,a longitudinally extendingl bar connected with such other member, a second disk cam liXed to said shaft and co-operative with said rod to pull the member thus connectedptherewith towards said first member, and counterweights connected with said members tendingto move the same oppo* sitely to the direction of movement imparted by said cams.

Signed by me this 20th day of February, 1924. i

GEORGE w BENToN. 

